MSP430G2553 PWM accuracy issues

Hi,

I need to produce a relatively accurate frequencies.

I'm using PWM with 50% Duty Cycle.

I need to produce frequencies with distance of 50 Hz in between ({3150, 3200, 3250, ..., 4150, 4200}).

I'm using the following code but get 3405 Hz instead of 3205 Hz.

I'm using the following testing code:

#include <msp430.h>

int main(void)
{
  WDTCTL = WDTPW + WDTHOLD;                 // Stop WDT

  int f=3200;
  int t=1000000/f;

  P1DIR |= 0x0C;                            // P1.2 and P1.3 output
  P1SEL |= 0x0C;                            // P1.2 and P1.3 TA1/2 options
  CCR0 = t - 1;                               // PWM Period/2
  CCTL1 = OUTMOD_6;                         // CCR1 toggle/set
  CCR1 = t/2;                                // CCR1 PWM duty cycle
  TACTL = TASSEL_2 + MC_1;                  // SMCLK, up-down mode

  __bis_SR_register(LPM0_bits);             // Enter LPM0
}

Any ideas?

Thanks,

Itay Cohen